Model of heat transfer in the stagnation point of rapidly evaporating microjet

Abstract

Paper presented at the 8th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Mauritius, 11-13 July, 2011.

The paper presents investigation into the single water microjet surface cooling producing a film of liquid water with phase change. Tests were conducted under steady state conditions. Theoretical model of surface cooling by evaporating microjet impingement in the stagnation area is developed. Experiments were conducted using nozzle size of 70 and 100μm. Results of experiments were compared with predictions of the model showing a good consistency.